How do apps and devices call the os?

Holly created a professional development plan to explore how she could advance from her entry-level position to the next step in her career. she has identified her current skills and the skills needed for the job she wants. what should she do now? a) ask a colleague for advice about work-life balance b) identify her areas for improvement c) plan a vacation before she begins her new job d) wait until a position opens before continuing her plan